Cementing machine



March 16, 1943. A. SQLTAN y 314,172

CEMENTING MACHINE Filed Dec. 20, 1940 n A ATTORNE? Patented Mar. 16, 1943 2,314,172 CEMENTING MACHINE Alexander Soltan, Port Jervis, N. Y., assgnor of one-half to Percy W. Valentine, Brooklyn,

Application December 2.0, 1940, Serial No. 371,013

9 Claims. (Cl. 91-51) This invention relates to machines for applying cement to various kinds of workpieces, and particularly in applying a ribbon deposit of cement along and adjacent the peripheral edge portion of an article, and particularly articles having irregular edge contour; and the object of the invention is to provide a machine of the character described adapted for use in the application of cement on one surface of the sole of a shoe in the automatic feed of the sole through the machine; a further object being to provide means, independent of the feed rollers for feeding and guiding the workpiece through the machine, for applying the cement thereto at a point in close proximity to the feed rollers and further in adjustably controlling the lay of the cement on the applicator means so as to regulate the amount of cement applied to the workpiece as it is fed through the machine; and with these and other objects in view, the invention consists in a machine of the class and for the purpose specied, which is simple in construction, efficient in use, and which is constructed as hereinafter more fully described.

'I'he invention is fully disclosed in the following specification, of which the accompanying drawing forms a part, in which the separate parts of my improvement are designated by suitable reference characters in each of the views, and in which:

Fig. 1 is a longitudinal sectional view through the machine with parts of the construction broken away and with parts shown in elevation.

Fig. 2 is a front view of the machine with part of the construction broken away.

Fig. 3 is a rear view of the machine with part of the construction broken away and in section.

Fig. 4 is a partial section on the line 4-4 of Fig. l on an enlarged scale; and

Fig. 5 is a detail view looking in the direction of the arrow 5 5 of Fig. 1.

In machines of the class under consideration, rather complicated or intricate mechanisms have been employed for solving the problem, and it has been a common practice to use a feed roller for feeding a workpiece through the machine as a, means for applying cement to the workpiece; for example, as is taught in my prior Patent No. 2,205,443 of June 25, 1940. Furthermore, in my present machine design, in addition to providing an independent cement applicator roller with a y control of the feed of material to this roller for ,application to the workpiece, I provide a simtively with other machines of this general type and kind.

In the accompanying drawing, I0 represents the main casing of the machine which has a flange base II adapting the same for mounting on a pedestal or other stand, preferably of reduced diameter so as to render the machine structure, of which the casing I0 forms the primary part, accessible at both ends and sides thereof. Within the casing near the forward end thereof is a partition I2 which divides the casing into a storage compartment I3 and a delivery compartment I4. A filler plug or the like I5 is provided at vone side of the casing to introduce the cement into the chamber I3. In the lower portion of the chamber I3 is arranged a feed tube I6 in which is arranged a driven feed screw I'I for delivering the cement t0 the chamber I4. The tube I6 has an opening I8 therein for direct feed of the cement to the feed screw.

The upper Wall of the casing has a large opening I9 therein closed by a cover 20 in which is formed another opening 2I in turn closed by a plug 22. The latter may also be used as a filling plug is desired, in which event, the plug I5'may simply form a level gage for levelling the cement in the chamber I3. The cover 20 provides a large opening giving access to the interior o f the chamber I3 for cleaning and assemblage of the parts.

The upper front portion of the casing I0 has an opening 23 formed therein, and on this part of the casing is secured a cover or housing 24 which forms, in conjunction with the chamber I4, a, feed chamber 25 for applying the cement to an applicator roller later described. The other or rear end. of the casing I0 is provided adjacent one corner portion thereof with a pair of upwardly extending spaced arms 26, the upper ends of which are apertured to receive a pivot pin 21 forming the pivot of a swingingr arm 28. The arm 28 has an upwardly extending part 29 fitting snugly between the arms 2B. The arm 28 is in the form of a long tube having bearings 3i) at the end portions thereof for a shaft 3|; the forward end having a feed roller 32 and the rear end a gear 33 meshing with a gear 34, which in turn meshes with a gear 35 on a drive shaft 36.

On the shaft 36 outwardly of a gear housing 3'! secured 'to the rear end of the casing, is arranged a pulley 38 driven by a belt 39 from a motor, not shown. At 40 is shown a hand wheel yby means of which the shaft 38 may be manually operated. On the shaft 3| is a collar 4I which in conjunction with the gear 33, supports the shaft 3I against endwise movement.

shoe through the machine substantially as is taught in my prior patent heretofore mentioned.

The roller 32 is considerably wider than the rollerl 44 in order to dispose part of theroller32-over an applicator wheel or roller 45 which is arranged in close proximity to both of the rollers 32, 44 in the manner clearly seen in Figs. 1 and 2. In fact, the wheel 45 extends in front of the surface of part of the roller 44 in order to maintain a close relationship of these parts. The surface of the wheel 45 is disposed in substantial transverse alinement with the surface of the roller 44 so that in the feed of the workpiece through the machine, the lower surface of the workpiece will contact the surface of the wheel 45. The staggered arrangement of the feed rollers as seen in Fig. 2 of the drawing will also assist in this operation in conjunction with the peripheral guide rollers 46 and 41 which are supported on bracket plates 48 adjustably supported on top of the casing adjacent the rollers 32, 44 and held in different positions of adjustment by screws 46, as indicated in Fig. of the drawing.

The rollers 46 and4l operate upon the peripheral edge of the workpiece to automatically guide the workpiece through the machine.

The applicator wheel 45 is mounted upon a stub shaft 56 which is supported in the housing 24 and `also in a bearing 5I extending into the casing Il) substantially in alinement with the partition I2 but spaced from the partition to provide an overflow passage52 from the chamber I4 into the chamber I3. On the shaft 5I) rearwardly of the bearing 5I, is a pinion 53 meshing with an idler pinion 54. The latter meshes with another pinion 55 on a shaft 55 which extends from the bearing 5I outwardly through the rear wall of the casing. On the rear end of this shaft 56 is secured a gear 5l which meshes with the gear 34 so that the applicator wheel 45 travels at a slower speed than the feed rollers 32, 44 and is rotated in a direction opposite to the feed rollers. This reverse drive of the applicator wheel moves the Wheel onto the fed workpiece in a direction opposite to the progress of the workpiece, thus tending to drive or force the cement onto the surface of the workpiece and produce what might be termed a wiping or brushing effect rather than a laying effect which would be the result when the feed roller is utilized as an applicator roller.

On the drive shaft 33 within the housing 31 is a large sprocket 58 around which passes a chain 59 which passes around a smaller sprocket 66 on the protruding end 6I of the feed screw I'I. In this way, the feed screw may be driven at high speed to cause an upward surge of the cement in the chamber I4 into the chamber 25 to engage at least the lower surfaces of the applicator wheel disposed in said chamber. This wheel will pick up the cement to feed'it onto the undersurface of the workpiece.

I also provide means for gaging the amount oi cement applied to the workpiece which means consists of a wiper blade 62 having a forked end guided in an upwardly inclined direction as seen in Fig. 2 of the drawing and adjustably supported by a screw 64 in threaded engagement with the housing 24 and offset on said housing so that the blade extends onto the offset part 65 of the casing Ill. The hood or housing 24 ts over outer surfaces of the wheel 45 but leaves the upper edge of the wheel, including the roller 44, exposed to provide for the free feed of the workpiece through the machine.

The engagement of the gear 33 with the gear 34 Pis such as to compensate for the slight swinging A f movement of the arm 28 in the compensation of 63 engaging the periphery and sideedgesA of the x applicator wheel 45. note Fig; 5. The blade 62 is nesses within predetermined limits.

the feed roller 32 to workpieces of different thick- The roller 32 is supported in its depressed position'and is in firm engagement with the workpiece by a long flat but arched spring 66; one hook end portion of which fits in the slot of a stud 6'I secured to one side of the arm 28. The other end of the spring bears upon the top of the casing and an adjustable screw 68 supported in connection with a bracket 69 secured to the casing. The screw 68 operates upon the spring 66 to increase or decrease the tension of the spring in controlling the pressure engagement of the roller 32 upon the workpiece. A lock nut 'I0 is provided on the screw 58 to maintain the tension adjustment, as will be apparent.

By reason of the location of the shafts 3I and 43, one with respect to the other in a manner to dispose the shafts 3l at a point which may be said to be intermediate the shaft 43 and the stub shaft 50, the rollers 32 and 44 are not disposed one directly perpendicularly to the other, thus a slight downward feed of the workpiece in the direction of the surface of the applicator wheel 45, will be experienced, serving to maintain a constant engagement of the workpiece with said wheel; while at the same time providing a closer relationship of the feed rollers and applicator wheel to each other. At the same time, this spacing offsets the gears 33 and 34 so that in the swinging movement of the arm 28, the gear 33 does not operate directly upon the axis 43, but is slightly to one side of this axis. This will of course minimize the difference in engagement between the gears in the slight swinging movement to which the arm 28 is subjected in engaging workpieces of different thicknesses. Thus, for purposes of this description, the shaft 3| will be said to be spaced transversely with respect to the shaft 43, and further, said to be disposed intermediate the shafts 43 and 56; where as, the shaft 43 in the same sense is disposed intermediate the shafts 3| and 36 as will appear in Fig. 3 of the drawing. Intermediate is used in the sense of transverse relationship and not with respect to the shortest distance between the two axes named.

It will be understood that in the progress of the workpiece through the machine the roughened surface of the lower feed roller 44 forms an impression at the outer edge of the workpiece which will check to some degree the spreading tendency of the cement or other fluid. It will also be apparent that the surface speed of the workpiece is greater Vthan the surface speed of the applicator roller, which produces the drag or wiping effect. It will further appear that the guide rollers 46 and 4l which engage the peripheral edge of the workpiece will maintain the outer edge portion of the workpiece in alinement with the feed' roller V44.

Having fully described my invention, what I claim as new anddesir'e to secure' by Letters Patent, is:

1. In a sealing machine for applying a deposit of fluid material upon the surface of a workpiece at one edge thereof, a pair of feed rollers for feeding a workpiece through the machine, an

applicator wheel adjacent said feed rollers for applying a fluid to the surface of the workpiece adjacent the feed rollers and the edge of said workpiece, one of the feed rollers being wider than the other, said wider feed roller extending over the entire transverse peripheral surface of said applicator wheel in spaced relation thereto, the other feed roller having a roughened surfge, and side surfaces of the last named roller andapplicator wheel overlapping.

2. In a sealing machine for applying a deposit of fluid material upon the surface of a workpiece at one edge thereof, a pair of feed rollers for feeding a workpiece through the machine, an applicator wheel adjacent said feed rollers for applying a huid to the surface of the workpiece adjacent the feed rollers and the edge of said workpiece, one of the feed rollers being wider than the other, said wider feed roller extending over the entire transverse peripheral surface of said applicator wheel in spaced relation thereto, the other feed roller having a roughened surface, side surfaces of the last named roller and applicator wheel overlapping, and the first named wide feed roller having means yieldably supporting the same in engagement with the workpiece.

3. In a machine for applying cement to workpieces, a narrow feed roller, a wide feed roller disposed over and movable toward and from the narrow feed roller, an applicator wheel arranged in overlapped relationship with respect to the narrow feed roller with the peripheral surface of said wheel arranged beneath the periphery of the wide roller, means for rotating the applicator wheel in a direction opposite to the feed of a workpiece through the machine by said feed rollers, and at a surface speed slower than the surface speed of the workpiece fed through the machine.

4. In a machine for applying cement to workpieces, a narrow feed roller, a Wide feed roller disposed over and movable toward and from the narrow feed roller, an applicator wheel arranged in overlapped relationship with respect to the narrow feed roller with the peripheral surface of said wheel arranged beneath the periphery of the wide roller, means for rotating the applicator wheel in a direction opposite to the feed of a workpiece through the machine by said feed rollers, and at a surface speed slower than the surface speed of the workpiece fed through the machine, the wide feed roller being supported on a shaft arranged in a long tubular arm having a pivot at an end remote to the end carrying said roller, and adjustable means operatively engaging the arm controlling tensional engagement of said wide roller with the workpiece fed through the machine.

5. A sealing machine of the class described comprising a casing, a pair of feed rollers at one end portion of the casing for feeding a workpiece through the machine, means for delivering cement to one surface of the workpiece fed through the machine, the position of one of said feed rollers being fixed, a swinging arm supporting the other of said feed rollers, said arm comprising an elongated tube having an overhanging pivot at one end thereof, a shaft in said tube, a gear on the shaft adjacent the pivot end of said arm, said roller being. supported on the other end of the arm, andradjustableV resilient means cooperating with saidarm for urging the second named roller in the direction of the rst named machine.

6. A sealing machine of the-class described comprising a casing, a pair of feed rollers at one end portion of the casing for feeding a workpiece through the machine, means for delivering cement to one surface of the workpiece fed through the machine, the position of one of said feed rollers being xed, a swinging arm supporting the other of said feed rollers, said arm comprising an elongated tube having an overhanging pivot at one end thereof, a shaft in said tube, a gear on the shaft adjacent the pivot end of said arm, said roller being supported on the other end of the arm, adjustable resilient means cooperating with said arm for urging the second named roller in the direction of the first named roller in controlling frictional engagement of the rollers with a workpiece fed through the machine, and other adjustable rollers engaging the periphery of the workpiece adjacent the first named rollers to automatically guide the Workpiece through the machine.

'7. In a sealing machine of the class described a pair of workpiece feeding rollers, a cement applicator wheel arranged adjacent said rollers and overlapped by one of the first named rollers, means for operating said rollers and wheel, said means comprising a drive shaft, the rollers having shafts arranged above and transversely spaced with respect to the drive shaft, a gear train placing the roller shafts in operative engagement with the drive shaft, and means comprising two shafts including a large gear operatively engaging said gear train for driving the applicator wheel in a reverse kdirection to the feed of the workpiece through the machine at a surface speed slower than the surface speed of the workpiece.

8. In a sealing machine of the class described a pair of workpiece feeding rollers, a cement applicator wheel arranged adjacent said rollers and overlapped by one of the first named rollers, means for operating said rollers and wheel, said means comprising a drive shaft, the rollers having shafts arranged above and transversely spaced with respect to the drive shaft, a gear train placing the roller shafts in operative engagement with the drive shaft, means comprising two shafts including a large gear operatively engaging said gear train for driving the applicator wheel in a reverse direction to the feed of the workpiece through the machine at a surface speed slower than the surface speed of the workpiece, means automatically feeding a cement to the applicator wheel, and means in operative engagement with the drive shaft for operating said last named means.

9. In a sealing machine of the class described feed rollers for feeding a workpiece through the machine, means independent of the feed rollers for applying cement to the workpiece fed through the machine by said rollers, said means comprising an applicator wheel of larger diameter than either of said feed rollers and with the peripheral surface thereof engaging the workpiece arranged adjacent workpiece engaging surfaces of the rollers, means for rotating said wheel in a direction opposite to the direction of feed of the workpiece through the machine by said rollers, saidr-.wheeiand oneyoi theieed' rollers engaging `one side :surfacev of the-f workpiece, the

. other feedsroller engaging the'otherrside -surface ofthe-workpiece between said Wheelfandzrst named roller, tensional means supporting fthe last mentioned roller in engagement with the workpiece, and said last named roller being sup ported on anddrivenrbyfalong shaftfwiththe roller iatone" end'fof the: shaft and ai-4 drive gear at the other end thereof, and means adjacent the lasta named end-of` the shaft and in Wide spaced relationship to tthe .axis .thereof for `pivotailly supportingathe shaftxto provide movement of its rollerptoward and fromlthe workpiece.

.ALEXANDER SOLTAN. 

